elan300ss
Active member
Im having problems with the keihin carb on a yamaha 440 ss fanner,it seems to be starving for fuel and it will work when I cup my hand over the carb mouth,if I dont it bogs,Ive cleaned it more than once and there no choke cable attached, just the brass piece and spring that screws in the carb,is it because the choke is not hooked up? There is also a welsh plug on the carb top with an air screw with spring next to plug.What is under the plug? A ball valve maybe? Im thinking it may be the fuel pump not working properly too.Im stumped,any suggestions....